20572112

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{653}}^1$

素因数の和:851

約数の個数: 40

約数和(自身を含む): 43791840

約数和(自身を除く): 23219728

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 179, 358, 653, 716, 1306, 1432, 1969, 2612, 2864, 3938, 5224, 7183, 7876, 10448, 14366, 15752, 28732, 31504, 57464, 114928, 116887, 233774, 467548, 935096, 1285757, 1870192, 2571514, 5143028, 10286056, 20572112]

約数ペア:

[(1, 20572112), (2, 10286056), (4, 5143028), (8, 2571514), (11, 1870192), (16, 1285757), (22, 935096), (44, 467548), (88, 233774), (176, 116887), (179, 114928), (358, 57464), (653, 31504), (716, 28732), (1306, 15752), (1432, 14366), (1969, 10448), (2612, 7876), (2864, 7183), (3938, 5224)]